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Hoang Anh Just

9 accepted papers

2026

Optimizing Product Provenance Verification Using Data Valuation Methods

AAAI 2026technical

Determining and verifying product provenance remains a critical challenge in global supply chains, particularly as geopolitical conflicts and shifting borders create new incentives for misrepresentation of commodities, such as hiding the origin of illegally harvested timber or stolen agricultural pr

Cited by 0SourcePDFScholar
2025

DiPT: Enhancing LLM Reasoning through Diversified Perspective-Taking

NAACL 2025findings

Existing work on improving language model reasoning typically explores a single solution path, which can be prone to errors. Inspired by perspective-taking in social studies, this paper introduces DiPT, a novel approach that complements current reasoning methods by explicitly incorporating diversifi…

2024

Get more for less: Principled Data Selection for Warming Up Fine-Tuning in LLMs

ICLR 2024poster

This work focuses on leveraging and selecting from vast, unlabeled, open data to *pre-fine-tune* a pre-trained language model. The goal is to minimize the need for costly domain-specific data for subsequent fine-tuning while achieving desired performance levels. While many data selection algorithms…

Cited by 15SourcePDFScholar
2023

2D-Shapley: A Framework for Fragmented Data Valuation

ICML 2023poster

Data valuation—quantifying the contribution of individual data sources to certain predictive behaviors of a model—is of great importance to enhancing the transparency of machine learning and designing incentive systems for data sharing. Existing work has focused on evaluating data sources with the s…

2023

LAVA: Data Valuation without Pre-Specified Learning Algorithms

ICLR 2023top-25%

Traditionally, data valuation is posed as a problem of equitably splitting the validation performance of a learning algorithm among the training data. As a result, the calculated data values depend on many design choices of the underlying learning algorithm. However, this dependence is undesirable f…

2023

Performance Scaling via Optimal Transport: Enabling Data Selection from Partially Revealed Sources

NeurIPS 2023poster

Traditionally, data selection has been studied in settings where all samples from prospective sources are fully revealed to a machine learning developer. However, in practical data exchange scenarios, data providers often reveal only a limited subset of samples before an acquisition decision is made…

Cited by 14SourcePDFScholar